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Corpus Spongiosum

Medically reviewed by: Stephanie Curreli, MD, PhD
Last Updated: Dec 13, 2016

The corpus spongiosum is a column of erectile tissue that composes the shaft of the penis. It extends through the urethra and is enlarged at the end to form a sensitive, cone-shaped glans penis, which covers the ends of the corpora cavernosa and bears the urethral opening. Inside the glans penis, the corpus spongiosum is dilated and forms the navicular fossa.

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